diff options
Diffstat (limited to 'quantum/backlight')
| -rw-r--r-- | quantum/backlight/backlight_avr.c | 10 | ||||
| -rw-r--r-- | quantum/backlight/backlight_soft.c | 66 |
2 files changed, 71 insertions, 5 deletions
diff --git a/quantum/backlight/backlight_avr.c b/quantum/backlight/backlight_avr.c index 445698f47c..648a37adf3 100644 --- a/quantum/backlight/backlight_avr.c +++ b/quantum/backlight/backlight_avr.c @@ -159,7 +159,7 @@ # define BACKLIGHT_ON_STATE 0 # endif -void backlight_on(uint8_t backlight_pin) { +void backlight_on(pin_t backlight_pin) { # if BACKLIGHT_ON_STATE == 0 writePinLow(backlight_pin); # else @@ -167,7 +167,7 @@ void backlight_on(uint8_t backlight_pin) { # endif } -void backlight_off(uint8_t backlight_pin) { +void backlight_off(pin_t backlight_pin) { # if BACKLIGHT_ON_STATE == 0 writePinHigh(backlight_pin); # else @@ -191,16 +191,16 @@ void backlight_off(uint8_t backlight_pin) { # define FOR_EACH_LED(x) \ for (uint8_t i = 0; i < BACKLIGHT_LED_COUNT; i++) { \ - uint8_t backlight_pin = backlight_pins[i]; \ + pin_t backlight_pin = backlight_pins[i]; \ { x } \ } -static const uint8_t backlight_pins[BACKLIGHT_LED_COUNT] = BACKLIGHT_PIN_INIT; +static const pin_t backlight_pins[BACKLIGHT_LED_COUNT] = BACKLIGHT_PIN_INIT; # else // full hardware PWM // we support only one backlight pin -static const uint8_t backlight_pin = BACKLIGHT_PIN; +static const pin_t backlight_pin = BACKLIGHT_PIN; # define FOR_EACH_LED(x) x # endif diff --git a/quantum/backlight/backlight_soft.c b/quantum/backlight/backlight_soft.c new file mode 100644 index 0000000000..a6aba7782c --- /dev/null +++ b/quantum/backlight/backlight_soft.c @@ -0,0 +1,66 @@ +#include "quantum.h" +#include "backlight.h" + +#if !defined(BACKLIGHT_PIN) && !defined(BACKLIGHT_PINS) +# error "Backlight pin/pins not defined. Please configure." +#endif + +#ifdef BACKLIGHT_BREATHING +# error "Backlight breathing is not available for software PWM. Please disable." +#endif + +#ifndef BACKLIGHT_ON_STATE +# define BACKLIGHT_ON_STATE 0 +#endif + +#ifdef BACKLIGHT_PINS +# define BACKLIGHT_PIN_INIT BACKLIGHT_PINS +#else +# define BACKLIGHT_PIN_INIT \ + { BACKLIGHT_PIN } +#endif + +static const pin_t backlight_pins[] = BACKLIGHT_PIN_INIT; +#define BACKLIGHT_LED_COUNT (sizeof(backlight_pins) / sizeof(pin_t)) + +#define FOR_EACH_LED(x) \ + for (uint8_t i = 0; i < BACKLIGHT_LED_COUNT; i++) { \ + pin_t backlight_pin = backlight_pins[i]; \ + { x } \ + } + +void backlight_on(pin_t backlight_pin) { +#if BACKLIGHT_ON_STATE == 0 + writePinLow(backlight_pin); +#else + writePinHigh(backlight_pin); +#endif +} + +void backlight_off(pin_t backlight_pin) { +#if BACKLIGHT_ON_STATE == 0 + writePinHigh(backlight_pin); +#else + writePinLow(backlight_pin); +#endif +} + +void backlight_init_ports(void) { + // Setup backlight pin as output and output to on state. + FOR_EACH_LED(setPinOutput(backlight_pin); backlight_on(backlight_pin);) +} + +void backlight_task(void) { + static uint8_t backlight_tick = 0; + + if ((0xFFFF >> (get_backlight_level() * ((BACKLIGHT_LEVELS + 1) / 2))) & (1 << backlight_tick)) { + FOR_EACH_LED(backlight_on(backlight_pin);) + } else { + FOR_EACH_LED(backlight_off(backlight_pin);) + } + backlight_tick = (backlight_tick + 1) % 16; +} + +void backlight_set(uint8_t level) { + // noop as backlight_task uses get_backlight_level() +} |